How to adjust the airbag height valve

The height valve is the core component of the suspension control device installed between the car body and the bogie. When the vehicle load increases, the car body moves downward relative to the bogie, and at this time, the height valve inflates the air spring, which increases the pressure of the air spring and the height of the car body. When the weight of the vehicle is reduced, the body will move upward, and the height valve will exhaust the air in the air spring, so that the pressure of the air spring will decrease and the height of the body will decrease until the body is restored to the set height. If the vehicle is at the set height, the height valve is in the so-called neutral position. At this time, the intake valve and exhaust valve are closed, and the air spring neither inflates nor exhausts.